Home / 2,148-2,964.36-1,251.72

Finding the Fourth Proportional to 2,148, 2,964.36 and 1,251.72

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Solution

The fourth proportional to 2,148, 2,964.36 and 1,251.72 is: 1,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148 : 2,964.36 = 1,251.72 : x
  2. Step 2: Convert to fraction form
    2,148/2,964.36 = 1,251.72/x
  3. Step 3: Cross multiply
    2,148x = 2,964.36 × 1,251.72
  4. Step 4: Simplify right side
    2,148x = 3,710,548.70
  5. Step 5: Solve for x
    x = 3,710,548.70/2,148
  6. Step 6: Final answer
    x = 1,727.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.